520
packet-capture read (on wired devices)
IMPORTANT:
To use the packet capture feature, you must install the feature image by using the
boot-loader
or
install
command. For more information about the commands, see
Fundamentals Command
Reference
.
Use
packet-capture read
to display the contents in a packet file.
Syntax
packet-capture read
filepath
[
display-filter
disp-expression
] [
raw
| {
brief
|
verbose
} ] *
Views
User view
Predefined user roles
network-admin
Parameters
filepath
: Specifies the full path of the packet file to store captured packet data. The path must be a
case-sensitive string of up to 64 characters. The filename extension must be
.pcap
or
.pcapng
. For
more information about setting a file path, see file system management in
Fundamentals
Configuration Guide
.
display-filter disp-expression
: Specifies an expression to match packets to be displayed, a
case-sensitive string of 1 to 256 characters. If you do not specify a display filter expression, this
command displays all file contents.
raw
: Displays file contents in hexadecimal notation. If you do not specify this keyword, the capture
displays packet data in a human-readable format.
brief
: Displays brief information about captured packets in the file.
verbose
: Displays detailed information about captured packets in the file.
Usage guidelines
If you do not specify the
raw
,
brief
, or
verbose
keyword, this command displays brief information
about captured packets in the file.
To stop displaying the file contents, press
Ctrl+C
.
Examples
# Display the contents in the file
flash:/test/aaaa.pcap
.
<Sysname> packet-capture read flash:/test/aaaa.pcap
Related commands
packet-capture
